and the lone surviving suspect is 19-year-old dzhokhar tsarnaev. he's in intensive care here at a boston hospital. and this morning there is new information, he is in fact communicating with investigators. meanwhile the city is coming together, trying to at least, preparing to move forward. holding a moment of silence at 2:50 p.m. eastern this afternoon. the moment the explosions rocked the world. newsroom special coverage of the boston bombings begins right now. good morning, i'm wolf blitzer reporting live from boston. we're following all of the latest developments here. some of the latest developments this monday morning in boston. charges could be filed as soon as today for the surviving suspect dzhokhar tsarnaev. officials say evidence recovered

suggests, suggests, he and his brother were planning another attack. some 55 people remain hospitalized at multiple facilities throughout the boston area. as families mourn those killed, a funeral will be held this morning for krystle campbell and memorial service is scheduled later tonight for lingzi lu. and following a tense friday under lockdown, bostonians this morning are heading back to work, resuming a bit of normality. but the blast site a stretch of boylston street that includes copley square near the marathon's finish line remains closed at least for now. boston's police commissioner telling cnn the area is expected to remain -- to reopen, i should say, in the next day or two. right now let's start with the surviving suspect dzhokhar tsarnaev, 19 years old. he's at the beth israel

deaconess medical center. he's in serious but stable condition. he is sedated with a tube down his throat after suffering a gunshot wound to his neck. and this just coming into cnn, sources now confirming that dzhokhar tsarnaev is communicating in fact with investigators by writing his answers down. they have been questioning him since yesterday. there is some form of communication between law enforcement and the suspect we believe in writing. pamela brown is outside the hospital for us, she's joining us now. what is the latest on tsarnaev's condition? >> reporter: the latest is that he remains here at beth israel deaconess medical center in serious condition. he is still in the intensive care unit handcuffed to his bed 24/7 monitoring by law enforcement officers. we are told that he is intubated and sedated with a gunshot wound to the neck. so it appears that he is still

pretty out of it. wolf. >> doctors are telling us that tsarnaev could put something -- could be getting something that's described as a sedation holiday. i know you've been checking with medical personnel over there. what does that mean? >> reporter: well, i've been talking with our medical correspondent elizabeth cohen and she tells me that essentially this means doctors can decrease the sedation for a few minutes to a few hour so is that doctors or authorities would be able to communicate with the patient. we've seen this before it in other cases and it appears now that we're hearing from colleagues gloria borger and fran townsend that he's communicating with investigators, it appears the sedation holiday has been used. typically what happens is the patient is pretty out of it, but they're able to understand what's being said to them and they're able to communicate through writing. so again it appears that this is what's been happening in this

case. wolf. >> security obviously very intense over there at the beth israel hospital. pam, we'll get back to you. the boston police commissioner ed davis believes the bombing suspects were planning in fact another attack. davis spoke just a little while ago with john berman. listen to this. >> the two suspects were armed with hand guns at the scene of the shoot-out. and there were multiple explosive devices including a large one that was similar to the pressure cooker device found on boylston street. i saw that with my own eyes. i believe that the only reason that someone would have those in their possession was to further attack people and cause more death and destruction. >> what you can tell me about transit officer richard donohue? he was shot in the shoot out-thursday into friday morning. we understand he lost a great deal of blood. how is he doing this morning?

>> they were incredible part they a partners with us. he's doing much better. he was able to communicate through hand signals with his family yesterday. and he was in grave condition, but we're optimistic at this time. >> investigators are also still looking for a motive into last monday's terror attacks here in boston. we've heard from several people who knew the suspects and we're getting their reaction. nick paton walsh is joining us from southern russia, he's in dagestan. nick, you spoke with the suspect's aunt. what did she say? >> reporter: a number of interesting things. firstly, that when he came back last year to dagestan, tamerlan tsarnaev, the older brother, he went tries to chechnya to visit relatives. but she was struck by how he had

embraced devoutly the islamic faith. here's what she had to say. is there a connection between this gun fight and one of the boston bombers? the youtube page suggests there might be. he put up a link to a video he put up a link to a video and it was removed, but cnn has now found it and it shows this man. it's an islamist militant. russian special forces hit his hideout last december to kill as many as six militants inside. the grisly aftermath showing heavy weapons, but also the heavy hand used to kill them. four months later, the marks

remain of the tit for tat violence fueling militancy across the region. neighbors told us the young man who once lived here seamed peaceful, ordinary, but in the dust lies a question why did tsarnaev's youtube page link to the militant who died here. in a town where tsarnaev's father lived and tamerlan visited just last year. inside you can see just how intense the violence must have been and here could be the clearest link yet between one of the alleged boston bombers and the violence that's been gripping southern russia. a u.s. intelligence source told cnn that tsarnaev brothers social media accounts are being examined for possible links to extremists in the caucasus in case they reveal the darkest secret of boston. why did the bombers do it. now, it doesn't necessarily mean that tamerlan tsarnaev actually

met the militant here in dagestan, but it is interesting that he chose to post a video related to this man just after he in fact had been here. we were talking before the report was played about an interview i did earlier with the aunt. having technical difficulties there. but she was clear how surprised she was when her nephew came back to dagestan, how sure priced he was at how he had embraced so devoutly the islamic faith in america. let's hear what she had to say. >> translator: strange to me that it was him who adopted islam, not his mother or father. but not so strange that children study islam and teach their parents and that's how it turned out with him. they hadn't prayed before they went to america. nobody taught him. he learned everything himself. at the same time, we were happy about it because he didn't start doing drugs or alcohol and adopted the path to islam. >> reporter: now, clearly she

paints a picture of a man who is very much devout in his faith, didn't look other women in the eye unless he was related to them, talked also about how occurring that advivisit he met relatives twice. and while u.s. officials say he was in russia between january and july of last year, she only saw him in this part of the world around about march. so a bit of a hole there for what he was doing in russia. slowly we're piecing together his team here last year and how this man grew up. >> nick, a quick follow-up. do we know for sure that while he was in dagestan, he did make a side trip to chechnya? >> reporter: that's what she says, twice. i should point out that is not in itself anything to be suspicious about. the dynamics of this region have changed enormously in the past few years. actually dagestan now in the minds of many more of a hot bed

of militant violence than chechnya which used to of course be not the case during the decade of intense violence it seemed during those two particular wars. but people perhaps asking what other links he may have had around the region and who he may have seen during his visits here. wolf. >> thanks very much, nick. on the scene for us in dagestan. as we wait for the formal charges to be filed against the younger brother, many wonder if the fbi should have been watching tamerlan tsarnaev the older brother more closely. former fbi assistant director tom fuenten joining us. did the fbi miss certain indicators when they were tipped off from the russian authorities? what are you hear something. >> reporter: well, what the fbi will be doing is exactly that,

they will go back to examining the original request made by the russian federation to the fbi agents in moscow, how much knowledge they had, did it look like it was a search for information about his political beliefs or religious beliefs or in fact what the basis of suspicion was that he was involved with the militant group. they will look at what they did in response to that request in boston and other places to try and determine could it be determined on this end that he was in contact with militant groups or other groups here in the u.s. that could be linked to a militant group. do the interview with friends, neighbors, colleagues like the media has been doing and probably heard the same glowing accounts of what a great kid he was at that time. now, this apparently is before the time that people are now saying he became radicalized. but at that time, people were

saying that great american kid. and the younger brother, as well. so that's what they will be looking at, what they were told, what they received, what electronic communications they were able to analyze from him to others. and then send the results back to russia. and in this case ask russia for additional information which didn't come apparently. so that's what they're trying to determine exactly all the communications and what was done about it. >> they're also trying to determine whether or not the two brothers had any assistance, any training, any assistance in getting the explosives, the weapons, any assistance in gegt the money to buy all the equipment. that's noting for to be that easy to find out all the answer, but i know the fbi is working hard on that front, as well, right? >> right. they will be working on that and examining their cell phone and internet communications here especially in the most recent

time as well as continue the interviews of more current classmates and colleagues, neighbor, friends to determine that. but this was not an extensive operation. this was not spending thousands of dollars to learn how to fly a jetliner. this is a couple hundred dollars probably to buy the pressure cookers or pipes and the black powder and a couple of wires and timers. it's really not that expensive an operation. the other issue is how many engineering training did the older brother get. he was allegedly an engineering student. in 2006, a kid takes one course in mechanical engineering at a junior college and he's able to rig up a bomb and he has a video of him testing it in his livisea telephone. goes up in smoke basically. doesn't burn the apartment building down. but it shows that somebody with a little aptitude, a little bit

of training maybe in college, maybe elsewhere, can do it. they can do -- probably would take a little bit of training, but if he took the right engineering courses and read the right books, key ghe could get . >> also trying to determine where he got the guns, the long rifle they had as well in the shoot-out. so all these questions obviously under investigation. tom, thanks very much. emotions are still raw at the university of massachusetts dartmouth where the 19-year-old dzhokhar tsarnaev was a student. some of his friends think he might have been brainwashed by his older brother. luis vasquez knew both. this is what he said. >> he was the follower and shr down the line he was brainwashed by somebody who was also probably brainwashed. >> cnn's chris lawrence has been speaking with the students on

the campus. >> reporter: dzhokhar's friends tell us not only did he come back here to campus, he talked about the bombing. calling it both sad and crazy. a little more than 24 hours after video cameras captured him at the boston marathon, dzhokhar tsarnaev jumped back into campus life, seemingly unfazed classmates say by the terror attacks he's accused of committing. >> i saw him tuesday the day after at the gym. >> reporter: and he says dzhokhar was acting like he didn't have a care in the world. >> he seemed very nonchalant, didn't seem like nervous or anything. >> reporter: dzhokhar worked out for a while and didn't shy away when zach brought up the bombing. >> i was basically like, yeah, these things happen in other countries, maybe iraq and afghanistan, and he was like, yeah, tragedies happen like this all the time. it's sad. >> reporter: just days before helicopters and s.w.a.t. teams descended on umass dartmouth, dzhokhar was seen all over campus. students have to swipe their

i.d. to get entrance to the building and records show tsarnaev did just that right here on wednesday. friends saw dzhokhar walking around his dorm. he went to this restaurant on wednesday hanging out with other intermural soccer players. >> i think it was a pasta party. >> reporter: in the campus buzz over the bombings, it doesn't seem to bother him. >> he was like, yeah, tragedies happen. it's crazy. >> reporter: and to some students, scary. >> i ate where he ate, i slept a few feet away from him. i've had class where he's had class. like with a terrorist. >> reporter: obviously he hasn't been convicted, but that student, she knew him. and would see him off campus at a place students call the russia house. just a home where a lot of the international students would hang out together. in fact a lot of students tell us despite what's been said about the older brother feeling isolated and not having any american friends, they say joe scar was ju

dzhokhar was just the opposite, fully assimilated american college student who they feel was strongly influenced perhaps even brainwashed by his older brother. wolf. >> chris lawrence over at the campus university of massachusetts darthomouth. thanks vef. weighing the possible charges against dzhokhar tsarnaev, we could find out what those charges are as early as today. special edition of newsroom. we're live here in boston. it will continue right after this. [ male announcer ] when gloria and her financial advisor

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vo: wherever our trains go, the economy comes to life. norfolk southern. one line, infinite possibilities. welcome back to our special edition of newsroom. i'm wolf blitzer reporting live from boston. people are returning to work this morning, buses are back in service, the trains are running. and as you look around the city, there is -- everybody is beginning to get strong. in fact there is a notion of boston strong. you see the signs all over the place.

just last night, major league baseball, players association for boston red sox management, they announced they would donate at least $600,000, maybe $700,000, to assist victims and families affected by the bombings at the end of the boston marathon. dzhokhar tsarnaev could be charged today for his alleged role in the bombings. and actions afterwards. justice department officials tell cnn he'll likely face federal terrorism charges, possibly state murder charges, as well. our senior legal analyst jeffrey toobin is joining us to give us perspective. labels tsarnaev as an enemy combatant, what would that mean if that were to happen as several republican senators including john mccain, lindsey graham, they are suggesting. >> that could take him out of the american criminal justice system and put him into some other kind of system.

it's not quite clear. a military tribunal, perhaps being sent to guantanamo. in any case the obama administration has shown absolutely no interest in that idea and every indication is that he will be tried as a criminal defendant in an american criminal courtroom. >> lindsey graham who himself is a military attorney, has spent 30 years in the u.s. air force, he insists he wants tsarnaev to be tried in american civilian court, but that didn't preclude at least for now naming him an enemy combatant to try to question him to see if there are other bombs out there, other individuals who may be involved. sort of this imminent threat notion. is he on sound legal ground, lindsey graham, when he says, yes, he'll go before a civil trial, but at least for now name him an enemy combatant so he can be questioned? >> well, the obama administration has established a policy of a so-called public

safety exception to the miranda rule where for some period of time, it's not entirely clear how long, a suspect can be questioned without miranda warnings and that apparently is what's happening here. again, it's complicated somewhat by the fact that we didn't know exactly what tsarnaev's medical condition is and how many questions he can answer. apparently he's answering some questions in writing. so i don't really see lindsey graham's proposal as all that differentwhat's going on now. he seems to suggest a longer process of questioning him, but the obama administration has also committed to some period of questioning. now, this all assumes that he's willing to answer questions. can he always samp simply say it answering questions and there is no way either under enemy combatant rules or in the criminal justice system to force someone to answer questions who doesn't want to answer them.

>> the argument i guess is under this limited questioning period before he is formally advised of his miranda rights, he has and right to an attorney, doesn't have to answer any questions. there has been some suggestion that can only last maybe 48 hours or so if he's formally named an enemy combatant, that would go on for days if not weeks. i guess that's the distinction. >> it's the length of time. right. the enemy combatant, if that designation were made, could go on for weeks or even months. but i just think it's important to emphasize that the obama administration has absolutely not considered that, has not considered that approach, and every terrorism suspect under either the george w. bush administration or the obama administration who was arrested on american soil has been treated as a criminal defendant in the united states courts. senator graham's proposal would

an complete departure from that approach and i don't think there's any indication that's going to happen.that approach a there's any indication that's going to happen. >> and he's a naturalized u.s. citizen. only 19. but last september, he received his u.s. citizenship, he was arrested on u.s. soil. so for the obama administration to name him an enemy combat tantd, you're right, that would be a deviation from everything we've heard from eric holder, the attorney general, from the president on down. all right, we'll continue the conversation here on cnn. thanks very much. our senior legal analyst jeffrey toobin helping us better understand the complexities of the law. still to come, could this boston terror attack have been prevented? that's a huge, huge question that's under review right now, along with the fbi, should it have paid more attention to the warnings it received about the older brother?

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welcome back to our special

edition of newsroom. while investigators look to try to find out why the boston bombings were carried out, some are questioning if the fbi could have done more to prevent the terror attack in the first place. our team coverage continues with our crime and justice correspondent joe johns. he's in washington. joe. >> wolf, investigators obviously still have a lot more to learn about this case. but as you've been discussing this morning, there's already enough information for policymakers to start asking some very basic questions and the one question that is already being asked the most right now in washington is whether the fbi dropped the ball at the very start. in the search for how suspected marathon bomber tamerlan tsarnaev turned radical, a big part of the investigation is focused on what role a six month trip to russia played and any contact he may have had with extremists in chechnya where his

family originally hails from. >> i think it's very probable that when he's in the region, it's a very dangerous region, they're known for their tactics, that he possibly could have been trained. >> reporter: when he got back from russia, tsarnaev started posting radical videos on a new youtube page with an address that bore the names of prominent militant leaders among islamist groups. and cnn has learned at one point the page included this video since deleted from youtube of a jihadist killed this year by russian forces in the same town where tsarnaev went to visit his father in 2012. the group denies any connection to him. >> what does that say to you if anything? >> it's certainly a major point in the investigation. >> reporter: in hindsight, many are asking whether the fbi missed a radical after russians raised concerns. >> this man was pointed out by a foreign government to be

dangerous. he was interviewed by the fbi once. what did they find out, what did they miss. >> i want to know how the fbi or the system dropped the ball when he was identified as a potential terrorist. >> reporter: the fbi says it interviewed him, his family and looked for concerning phone and internet activities and found no threat. after asking russia for more information, moscow did not respond. the fbi closed the case and moved on. >> thousands of these requests come in worldwide, so you don't have the resources to follow every person on from then on for the rest of their life because they might be a bad guy. >> reporter: but what's still not clear is why tsarnaev would target his adopted city. one possibility here as to why he might target his adopted city, the "new york times" reports, his citizenship was delayed because of the fbi investigation, wolf.

>> no word yet on the u.s. attorney announcing when -- if the charges will be filed today. we expect as early as today, but we have no official word yet, right, joe? >> we have no official word and quite frankly we just got a schedule released by the justice department at least in washington, d.c., no public have been scheduled, so that adds to the mystery, wolf. >> we'll stay in close touch with you. thanks very much. here is what else we're seeing right now, we're watching this morning. many homes and businesses in the chicago suburb of december des plaps are seeing water levels near 60 year highs. we're learning more about the snowboarders who died in a colorado of a large this weekend. the men were all in their 30s and living in colorado.

the sixth member of the party survived by digging himself out of the snow. and hiking to a road for help. all were wearing avalanche beacons and proper equipment. in the city of west, texas several residents are being allowed back to see their homes for the first time since last week's fertilizer plant explosion. that explosion killed 14 people, left 200 others injured. investigators have yet to determine what caused wednesday night's blast, but today they will head into the blast crater to start searching for clues. martin savidge is joining you now from west, texas with more. martin, what exactly are they looking for in that blast crater? >> reporter: good morning, wolf. yeah, just so you know, this is one of the main check points to get this to the explosion zone directly behind us here. it is pretty much off-limits and here is the reason why. getting into that crater is crucial as part of the investigation. a lot of figuring out what

happened, what went wrong, will be based on forensic science because the records and everything that was in that facility that could tell them things like how much and what sort of chemicals and what kind of fertilizers, that was obliterated along with the plant itself with that terrible explosion on wednesday night. so going in there, and everything in that explosion zone is considered evidence. that would include say the debris, that would include the kind of damage that was done, the blast pattern coming out from the plant itself. it would even include the victims' bodies and that's one of the reasons they have not been released to family members. because they, too, are part of the investigation. they need everything in there behind me to help try to come up with a solution to figure out what happened. >> martin, thanks very much. we'll stay on top of this story together with you, as well. heart breaking story, indeed. just ahead, questions about

whether the tsarnaev brothers were aided by others. welcom

edition of newsroom. fbi and others are trying to piece together a motive for the deadly marathon attack and we're learning they may be getting some assistance from the lone

surviving suspect. sources telling cnn dzhokhar tsarnaev is communicating with officials through writing. he has been questioned since yesterday. cnn international security analyst jim walsh is joining us with more on what's going on. one of the key questions, the weapons that they have, the weapons that eventually killed an m.i.t. police officer, seriously injured another local law enforcement officer. do we have any idea where they got those weapons? >> not yet. and i think that question also extends to the explosives, as well. but this is an investigation pursuing lots of lines of inquiry both foreign and domestic. i would have to guess, though, that rather than risk acquiring weapons and explosives from abroad, it's much more likely they were acquired domestically. >> these two guys apparently didn't have much money, but enough to buy explosives, pressure cookers, a rifle, long

rifle according to the watertown police chief i spoke with. other weapons, as well. >> i'm sure they're already well into the suspect's computer files and financial records. we're getting a mixed picture because on the one hand, they seem to have had a modest style of living. on the other hand, there is that picture that's been widely circulated of suspect number one wearing expensive shoes, expensive clothes, other reports by people who knew them that the older brother engaged in a more lavish lifestyle. so this picture is not adding up. and still another question for me personally is the explosives. they have more explosives than i would have originally guessed from the original reporting. and the question is if you've never done this before, just because you have a blueprint doesn't mean magically you can make something that works. and in this field what's important is reliability. you want that bomb if you're a terrorist to go off when you want to, not before, not after. that normally takes practice. so the question is there some facility or someplace outside of

boston or was that an experience gained overseas. that's one of the big questions i'll be paying attention to. >> and who trained those guys. >> if they were self trained, they would have had to have tested nearby. but the other alternative is that they received help and training and testing elsewhere. >> and the suspicion is that the older brother when he went back to dagestan may have received training there. >> and that's why this investigation is as likely on the foreign front as it is the domestic front. >> local law enforcement seem pretty assured there is no one else here in the area at large that may have been a co-conspirat co-conspirator. >> in the recent conferenpress boston police chief was asked this directly and he gave a shockingly by these standards crisp and clearance. he said as far as boston was concerned, it's over. now, there may be other things going on outside of the area, but he was definitive in the statement that at least for the

people in the city of boston that the danger had passed. >> jim wailsh, thanks very much. our national security analyst. still ahead, remembering the victims of the boston marathon bombings which happened one week ago today. thank you orville and wilbur... ...amelia... neil and buzz: for teaching us that you can't create the future... by clinging to the past. and with that: you're history. instead of looking behind... delta is looking beyond. 80 thousand of us investing billions... in everything from the best experiences below... to the finest comforts above. we're not simply saluting history... we're making it.

the officer's blood volume was almost entirely lost to the point of the heart stopping. the heart was resuscitated over the next 45 minutes or so. >> that was the doctor talking about the transit officer richard donohue. he's in critical condition after a shootout with the boston marathon bombing suspects thursday night. more than 50 other people are still hospitalized. three of them in critical condition. at least a dozen survivors had

amputations. the bomb attack at the boston marathon was one week ago today and today at precisely 2:50 p.m. eastern, the exact moment the first bomb went off, massachusetts will be on serve a moment of silence. church bells will then toll for the victims. those four people lost their lives, 29-year-old krystle campbell, 18-year-old m-- 8-year-old martin richard, link zi lieu, and officer sean collier. more thanners lined the streets of medford, massachusetts to say about good-bye to karm becampbe. her set for 11:00 a.m. this morning. cnn's jason carroll recalls as life cut tragically short. >> reporter: krystle campbell's mother, patty, so overcome by

grief, each word was a struggle. >> she was a wonderful person. everybody that knew her loved her. >> reporter: a family spokesman finally had to read her statement and say what she could not. >> everyone wknew her loved her. she was sweet, kind, friendly, always smiling, she worked so hard at everything she did. >> reporter: krystle campbell's story a tragic case of mistaken identity. the 29-year-old had gone to the marathon with her friend. both were caught in the first explosion. parents say doctors told them their daughter survived and they were trying to save her leg. but when campbell's parents were finally allowed to see her, they discovered it wasn't her at all. it was her friend. >> just doesn't make any sense. thank you. >> thank you. >> what kind of a daughter was

she, ma'am? >> she was the best. >> reporter: campbell described as sweet and kind by those who knew her here at the restaurant where she worked. >> you would like her immediately and she was one of the hardest workers we had. and i think that's what our crew here enjoyed most about her, she would get in the trenches and work right next to you. she wasn't afraid to get her hands dirty. so she was a very popular manager. >> reporter: a devastating mixup, leaving a grief stricken family wondering how it all could have happened. campbell's grandmother says the body was identified here at massachusetts general hospital. hospital spokeswoman would only say they have no record of krystle campbell. jason carroll, cnn, boston. >> heart breaking story indeed. still to come on our special edition of newsroom, with cameras rolling, watertown police came face to face with

the boston bombing suspects. an entire city shut down as police close in. my interview with the city's police chief, that's next.

♪ (train horn) vo: wherever our trains go, the economy comes to life. norfolk southern. one line, infinite possibilities.

friday morning in watertown, massachusetts, just outside of boston, police came face to face

with the two suspects in the boston marathon bomb. the older brother was killed in a shootout with police. on friday they closed in on the younger brother hiding in a boston in somebody's backyard. here's the rest of the story with ed deval. . when did you realize that was going down, that you had the second suspect? >> it was late in the day. we had a report, you know, that we got from our citizens. we asked them to keep vigilant. it sounded like really good information. >> that person called and said there's a guy in my boat in my backyard. >> at that point, we had a couple of thousands police officers on scene. the turnout out was incredible

from the state and region. we are able to close that scene down and secure it. we did take our time to make sure everybody was safe in the neighborhood. eventually we had to use some flash bangs to render the suspect -- >> what's a flash bang? >> it's a loud compression that would stun somebody for a large period of time. we were able to get him to stand up and show us that he didn't have a device on him. >> so he's lying in this boat, he's been there for several hours. he's wounded, he's obviously weak. you come over there and what do you say to him? >> we have a negotiator who was actually on the second floor of the house looking down at the boat. >> you could see him better? >> no, we couldn't see him. we had the state police helicopter that could tell us when there was movement in the

boat by the heat sensor. we began the negotiations that way. we were finally able to get him to surrender without anybody hurt. there was early gunfire when we got in the area. he exchanged gunfire with some of the officers at the scene. >> what kind of weapon did he have? >> we're not sure. that crime scene is still live down there. we don't know what's in that boat. there could be devices. >> the fbi is in charge of that? >> yes. >> did he have an explosive vest on his body like his brother did the night before? >> that was a major concern. that's why nobody wanted to go near him until we could lift his shirt up to see his chest.

eventually over a long period of time 20 to 30 minutes, we finally got him to do that. >> he had no explosives in the boat as far as you know? >> no. he needed first aid. >> you can see my entire interview in the next hour "cnn" we're back here in boston in just a moment. ribing the problem we were having with our rear brakes, she immediately triaged the situation, knew exactly what was wrong with it, the car was diagnosed properly, it was fixed correctly i have confidence knowing that if i take to ford it's going to be done correctly with the right parts and the right people. get a free brake inspection and brake pads installed for just 49.95 after rebates when you use the ford service credit card. did you tell him to say all of that? no, he's right though...

welcome back.

they're continuing to help people in boston come together after the marathon tragedy. here are some of the latest images. many nascar teams had boston strong stickers on their car at yesterday's race. there was a moment of silence before the race began to remember the victims of the boston tragedies, those killed in last week's plant explosion in west, texas as well. johnny used bats with the names of the three people killed last monday and the m.i.t. police officer killed thursday night. the bat will be auctioned off helping those most affected by the bombing. the florida panthers honored law enforcement by wearing boston, massachusetts state police cap.

after the game the boston bruins, gave first responders and marathon runners their jerseys. the bruins head coach says the team still has the event of the last week on their mind. >> too much has happened in the last week. we haven't forgotten and we never will. at the same time, you know, there's still some good electricity in the air. people out there are showing solidarity, which is great. we're trying to entertain them. from day one, give them something to cheer about and smile about. >> the bruins and new jersey devils game sang along to sweet caroline. ♪

>> others in the madison squaren -- sang along in a show of support for the people of boston. next hour we're live in the "cnn newsroom" after a short break. ♪

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so call now to get up to sixteen hundred dollars back or 12 months deferred interest on select lennox home comfort systems. offer ends june 14th. and download our free lennox mobile app. lennox. innovation never felt so good. one week ago today, boston was rocked by a deadly terror attack. now federal, state, and local officials are continuing their search for answers. dzhokhar tsarnaev is in intensive care at a boston hospital, a gunshot wound to the next, but word today he is communicating with officials. meanwhile, the city coming together and preparing to move forward, hold ago moment of

silence today at 2:50 p.m. special coverage begins now. good morning. i'm wolf blitzer in boston. we're reporting live from the scene of what's going on this monday morning. charges could be fileded to for the surviving suspect, dzhokhar tsarnaev. evidence recovered he and his brother were planning another attack. some 55 people remain hospitalized at multiple facilities throughout boston. as families mourn, the funeral will be held this mourning for krystle campbell krystle campbell and a memorial service is schedule tonight for lingzi lu. the blast site a stretch of boylston street that includes

copley square remains closed for now. boston's police commissioner telling cnn the area is expected to reopen in the next day or two. let's begin with a new twist in the investigation. one person we haven't heard from in this tragedy is the wife of deceased suspect. our chris lawrence just spoke with her attorney. he is joining us on the phone right now from rhode island. chris, tell us why she is relevant, very relevant, potentially in this investigation, the wife of this suspect who is now dead. >> because basically, wolf, federal agents have been trying to speak with her, trying to determine exactly, what, if anything, she may have known about her husband's plans, any information at all that she may be able to provide. right now we're right outside

the home her parents where she has been staying with her young daughter since her husband was killed in that shootout just a couple days ago. we spoke with her attorney in the last hour and he is basically giving us so very new contacts in this woman that federal authorities are looking to talk to. she was raised a christian. she converted to islam and became more devout as their marriage progressed. her name is catherine russell. we are told she goes by kayty to her friends. she wears a head scarf. she is observant. she's been working 70 to 80 hours a week as a home care

speciali specialist. her husband would stay home to take care of their daughter. let's go to the backgrou we're finding out some of what she's been dealing with over the past few days and what. he said she understands why federal authorities want to speak with her. they think it is a matter of national security and a threat to national security. she knows that, but it is very difficult for her. she said she is very upset because of what happened to the people at the boston marathon who were injured and killed, but she is dealing with the fact that she lost her husband and the father of her child. >> so far she has not answered fbi or other law enforcement's

questions, right? she's not cooperating with this investigation, according to her attorney. just want to be precise on that. >> i don't know if i would go so far as to character rise it as noncooperative. you know, they informed the federal authorities that they did a lawyer and they they'd be sort of speaking and using their lawyer, you know, to protect themselves. i do know from speaking with some neighbors here in this neighborhood in rhode island that federal authorities have been to the house here at least twice. we believe when we first got here that the family and the parents were here and today left within minutes as we were pulling up. so they were here at the home.

they left within the last half an hour or so and we can confirm that federal authorities have been to this house more than once. >> all right. chris. we'll stay in close touch with you. chris lawrence in rhode island speaking with the attorney of the wife of the elder suspect. the man who could provide some answers about the attack, dzhokhar tsarnaev, is currently at the medical center here in boston. here is more on his condition and the events that will likely lead to federal terrorism charges. >> reporter: we are learning this morning that the suspect has been communicating with investigators here at the hospital since yesterday. the suspect remains in the intensive care unit. he is still in serious condition with a tube down his throat.

he is still under sedation we are told. as the investigation continues, the big focus is what charges will he face and when? >> reporter: one week after two deadly bombs exploded in downtown boston killing 3 and injuries 180 people, the one remaining surviving suspect is in serious condition. federal prosecutors prepare to bring charges against him. he is unable to talk after a gunshot wound to the neck. >> this is a very complex investigation. it is hard to say how he received that injury. there was certainly a shootout in watertown. that's being looked into right now. it is hard to say how it occurred. >> reporter: we're learning more about the tense moments of

tsarnaev's arrest. according to a law enforcement source close to the information, after 25 minutes of negotiations tsarnaev was apprehended as he was leaving the boat. >> we held that position until the fbi hostage rescue team could come into place. >> at boston, copley square they're cleaning up if crime scene. later this morning, 29 year old krystle campbell will be laid to rest in bedford, massachusetts. a memorial is scheduled for lingzi lu tonight. in the meantime, critical injured richard donohue remains

hospitalized >> this was a truly exsanguinating injury meaning that the officer's blood volume was almost entirely lost to the >> now doctors are staying they are cautiously optimistic about his recovery. >> at 2:50 p.m. today there will be a moment of silence throughout the state of massachusetts in honor of the victims. >> thanks very much. pam is outside the hospital. investigators are looking for a motive in last monday's atta attack. nick paton walsh is joining us again. he is live in dagestan with us now. you spoke with the victim's aunt. what did she say? >> she talked about his return

last year for six months to is your honor -- southern russia. she described a radical challenge she saw in him. described him as devout, often not looking women who weren't related to him in the eye. during that six month period, he went to chechnya a couple of times, where we believe relatives of his live. this is a picture of a man who came back here perhaps to look at his roots to some degree to meet his father. we're learning too that on his youtube channel he posted a link to an extremist video.

>> reporter: there is a connection between this gunfight involving militants and police in dagestan and one of the boston bombers? the youtube page suggestions there might be. the video was removed by cnn has now found it and it shows this man. abu d a abu is a militant. the grizzly aftermath showing their weapons and the heavy hand used to kill them. neighbors told us the young man

who once lived here seemed peaceful, ordinary. but in the dust lies a question. why did tsarnaev youtube page linked to this extremist? you can see just how intense the violence must have been. in here could be the clearest link yet between one of the alleged boston bombers and the violence that's been gripping southern russia. a u.s. intelligence source told us that tsarnaev's account is being examined for links to extremists. why did the bombers do it? >> this does not mean tamerlan tsarnaev met that militant. it is interesting after his time

in dagestan that he posted a video of him on his youtube channel. that was subsequently deleted. we' they're trying to explain why if he d -- >> thanks very much. just ahead, weighing the possible charges against the surviving boston bombing suspect. we could find out fairly soon whether those charges are going to be filed as early ased toda. special edition live in boston. we're be back right after this.

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bombings. mourners hung a flag outside the church where her funeral will be held. she died just a few weeks before her 30th birthday. dzhokhar tsarnaev could be charged as early as today for his alleged role in the boston marathon bombings and actions afterwards. if he's declared an enemy combatant, there's no limit to how long have been questioned out an attorney. he could be eligible for the death penalty. jeffrey toobin is joining us now to give us more on the legal aspects of this. is it almost certain -- do you believe based on everything you know that the justice department, the u.s., the obama administration would charge him with crimes that could include

the death sentence? >> certainly as an initial matter he will be charged with crimes that could be eligible for the death penalty. once th ultimately, this is a decision that will go to eric holder, the attorney general. he will have to decide whether they will pursue a death sentence against tsarnaev. the initial stages of the prosecution will go forward in any case. that's a longer process. and you can be sure whatever happens with this legal process, it's going to be a matter of at least a year until this case goes to trial, if there is a trial at all. there will be a lot of quick activity in the next week or so and then things will slow down. >> what about this argument -- we're already hearing he was supposedly brainwashed by his

older brother. a criminal defense attorney could use that argument to try to save him from the death penalty? >> absolutely. there are a number of factors that the defense will use. he's only 19 years old. the supreme court has said that no one under 18 can even be considered for the death penalty. so his youth is one reason. the other point as you mentioned is, what was the influence? was he brain wauwashbrainwashed? was he coerced by his older brother? the other factor is what role he actually played, how the division of labor took place. we don't know that at this point. if he was very much the minor player, that will be another factor. that's something that's going to play out over a number of months. >> he's got to get healthy

presumably before anything significant can be done. if he's communicating right now, he's not been read his miranda rights, but he's writing answers to questions. what do you make of that from the legal perspective, that he's at least giving some answers to the fbi? >> that suggests his arraignment will be held soon. he can't be arraigned if he can't understand what's going on. he has to be able to be told what the charges are. he has to be given a lawyer. he has to communicate with his lawyer. if he's writing, that does suggest he is capable of undergoing an arraignment. they can take place at

hospitals. they don't have to take place in the courtroom. we could be moving forward to an arraignment in the next day or so. >> that would include a judge or magistrate showing up at his bedside. not unusual. thanks very much. among the many unanswered in the boston bombings, where did the brothers acquire the arsenal of guns used in the shootout against police. that and more when we come back.

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boston. let's look at some other stories. major flooding is affecting the midwest from central michigan to st. louis. more rain is on the why. it is not expected to crest until tomorrow. we're learning more about the snow boarders that died in a colorado avalanche this weekend. the sixth party survived by digging himself off the snow. all were wearing avalanche becons and proper equipment. investigators are back to the scene of that fertilizer explosion. they'll be examining the crater of the blast to find the cause of the explosion. residents were back to see their damages homes. the blast killed at least 14

people. investiga . because dzhokhar tsarnaev has a tube in his throat, the two sides can only talk by pen and paper. fran, what information could investigators receive from tsarnaev assuming he is still sedated and he can't talk, but he's writing answers to questions? >> you're not going to get a long narrative, right? you begin by asking yes and no questions. give us names of coconspirators. are there additional explosives? give us addresses. where are they? it is the simple basic lead questions that only he can really provide right now. are there foreign contacts? where are they? give us names. that sort of thing.

that can be extraordinarily helpful even at this early stage. >> how common is it for investigators to communicate through writing with a wounded suspect? >> listen, this is a real challenge for investigatiors, bt they understand it is required of them in these circumstances. it is important enough -- given the amount of explosives investigators found post marathon bombing, right? in the car chase there were five pipe bombs. given the amount of explosives close to the bombings, you could see the urgency investigators feel. it is worth it to communicate in writing becaue ining given what

are. you have to know the level of sedation he's under. we believe they're operating under a public safety exception. the thing that's most important to them is to understand is there any continuing risk to the u.s. public, particularly in the boston area, but to the american people at large, and what can they do to mitigate that risk? that's where they're focused. right now they're not focused n ornamenton add admissible evidence. the evidence looks overwhelming against this guy. >> fran town send is our national security analyst. coming up, there have been many questions about where the bombing suspects got their guns.

they reportedly didn't even have a license to own one gun. we're going to talk to the police commissioner of cambridge. he's standing by live. stay with us. our special edition coverage live in boston continues. alright, thanks! save a ton on our best available rate when you book early and feel the hamptonality. [ female announcer ] from meeting customer needs... to meeting patient needs... ♪ wireless is limitless. ♪ from finding the best way... ♪

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state and local and federal authorities have more questions an answers in their investigation into the boston bombings. how did these suspects get their hands on guns in cambridge? neither brother had a license to own a weapon. richard hoss is joining me here in boston. our condolences on one of the loss of your officers at mit.

these two suspects live in cambridge and you're the police commissioner there. have you been over to the apartment? >> i've been near there, but i haven't gone into the address at all. >> i guess the fbi been going through everything. >> yes. >> what can you tell us about the weapons that they had? they didn't have a license to open a weapon, did they? >> no. the younger brother wouldn't be eligible to get a license. >> you have to be 21? >> you have to be 21. >> what kind of weapons did they have? >> i have no idea. it is still part of the investigation. >> they had no licenses. somehow they got them. who is investigating that part of the story? >> there's two investigations going on. as you can imagine what took place on april 15th is part of the task force.

there's an homicide investigation that's been investigating by the district attorneys office. >> what's your role in this? >> we're very much focused on the homicide investigation in cambridge. >> tell us how that happened. >> we had gotten a report of a robbery at a 7-levin in central square. officers responded there thinking they were connected. we later they were not connected to the robbery. it was a an hour later that we got a report of a carjacking. obtained some photographs from the people that went into the shell station and were able to link it up back to what we think it was the homicide. there are still suspects in that case as well. >> where was the sean collier? >> he was inside the m.i.t.

building monitoring traffic. he was there when he was approached. >> was there anything that led to that attack? did he do anything? >> he was sitting in his cruiser at the time. it appears they approached at the rear of the cruiser and fired 4 or 5 shots. >> just randomly, they decided to kill this police officer? >> yes. >> they were suspicious he could be a threat to them? >> we have no idea at this point in time. >> another police officer was injured in this course of that exchange as well, another transit authority. >> that was later on when the pursuit up in watertown. basically they were able to corner the suspect. >> officer donohue, he remains in very serious condition. tell us a little bit about sean collier. >> he's been on the force for 14

to 15 months. he is a young police officer. he was very much involved president community. very much involved president homeless shelter in cambridge. he was very committed to community. very well thought of. very well respected. had a bright future in front of him. >> a tragedy. >> it was a great tragedy. >> good, good man. i assume you're been in touch with his family? >> we have. we feel a loss, both the cambridge police department and the mit police department. we answered calls together. it is a very tight community. our feelings and sympathies go to the family. >> i'm sure they are. thanks very much for coming in. give our best wishes to everyone

over there. an entire city locked down with thousands of police searching for a loan suspect, my interview with watertown's police chief. his account of how all of it came down. that's coming up in two minutes. [ agent smith ] i've found software that intrigues me. it appears it's an agent of good. ge has wired their medical hardware with innovative software to be in many places at the same time. using data to connect patients to software, to nurses to the right people and machines. ♪ helping hospitals treat people even better, while dramatically reducing waiting time. now a waiting room is just a room. [ telephone ringing ]

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to door searching for one of the boston marathon bombing suspects. i had a chance to speak with the watertown police chief, edward devoe. >> how many years have you been a cop? >> i've been on the job 30 years. >> when did you realize this was going down? that you had the second suspect? >> it was late in the day. you know, we had a report, you know, that we got from our citizens. we asked them to keep vigilant. we got the call. >> that person called and saysthere's a guy in this boat many my backyard. >> i do want to talk about what happened the night before. >> i'll get to that in a second. >> at that point, we had a couple of thousand police

officers on scene. the turn out was just incredible, the support we got from the state and the region. we had the tactical people to be able to close that scene down and secure it. we did have the time to make sure everybody was safe in the neighborhood. we did have to use flash bangs. >> tell you are viewers what a flash bang is. >> it is a loud sound that would stun people for a period of time. we were able to get him to stand up and show he didn't have a device on him. >> he's lying in this boat. he's been there for several hours. he's wounded. you come over there and what do you say to him. >> we had a negotiator who was actually on the second floor of the house looking down at the boat. >> you could see him? >> no, we couldn't see him.

there was a plastic tarp on top of him. we could tell he was alive by heat sensor in the helicopter. we began negotiation that is way. we were finally able to get him surrender without anybody hurt. >> -- >> there was early gunfire when we first got in the area. there was gunfire with some of the officers and then we secured the scene and there was no more gunfire. >> what kind of weapon did he have? >> we don't know. that crime scene is still live down there. we don't know what's in that boat. there could be devices. >> the fbi is in charge of that? >> down at the scene, yes. >> did he have anything strapped to his body like his brother did the night before?

>> that was a concern. we had him lift up his shirt. >> did he do that? >> we finally got him to do that. >> he had no explosive in the boat as far as you know? >> it is a decent size boat. we don't know what's in there. >> who would have done the talking with him? >> that would have been the fbi task force. >> he raised up his shirt, he showed he wasn't wearing an explosive device. then what happened? >> we had officers go in and grab him and pull him from the boat. we needed first aid. he was transported by ambulance to a boston hospital. >> who was the nature of his injuries? i believe the injuries were sustained the night before in the exchange police had with

him. >> there's a lot of activity going on behind us. walk us through that. >> it was a very hectic night where there was so much heroices in a lot of different police departments. i want to give credit to the men and women of the watertown police department. there was an assassination of an m.i.t. police officer. >> you believe by these two brothers. >> yes. >> why would they want to kill a police officer? >> that's still under investigation. he was responding to a loud disturbance call. >> was it on campus or at this convenience store? >> i believe it was on campus. they fled. they did a carjacking. somehow for some reason they ended upcoming to watertown. that's where our officers engaged the two of them.

>> what happened then? pick up the story. they're in a hijacked car. they had hijacked the car. they took the driver and then let the driver go after he gave them some money at the atm. >> right. what happened in watertown -- one of our police officers -- we are getting information based on pinging the cell phone that he's in watertown. we kind of know what streets he's on. >> tsarnaev was using his cell phone? >> no, it was the victim. >> they bragged to the victim they were the bombers of the marathon? >> that's right. we did the boston marathon bombings. lucky for him and lucky for us his cell phone remained in that vehicle so we were able to get

updates. now it is about 12:30 in the morning down a residential street in watertown. everybody is sleeping. our officers see two vehicles. the two brothers are in two different cars, including the car it was a hijacked. he ca before the back up could get there, the two cars stopped. they jump out of the car and unload on our police officers. >> when you say unload, what does that mean? >> they both came out shooting. handguns. we're still piecing that together. he's under direct by -- he has to jam it in reverse and try to give himself a little distance. >> the younger brother? >> no the police officer. within seconds i have two or three other police officers that pull up. we had just finished shift.

two off duty officers heard it going on in their car. i have officer engaged in gunfight. there was over 200 shots over a 5 to 10 minute period. >> chief devoe goes into more detail on the early morning shootout and how this situation came to an end. part two of my interview, that's next. so now i can help make this a great block party. ♪ [ male announcer ] advair is clinically proven to help significantly improve lung function. unlike most copd medications, advair contains both an anti-inflammatory and a long-acting bronchodilator working together to help improve your lung function all day. advair won't replace fast-acting inhalers for sudden symptoms and should not be used more than twice a day. people with copd taking advair may have a higher chance of pneumonia.

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thousands of police converge

on the city of watertown, massachusetts in the early hours of friday morning. after a day of lock downs they capture the suspect in the boston marathon. here is part two of my interview. >> during the exchange, all of a sudden something got thrown at my police officers. we now find out it is the exact bomb that was at the marathon on monday. >> like a pressure cooker? >> yeah. there's an major explosion during this gunfight. i am extremely proud of my officers. how i'm not -- my heart is out to the m.i.t. officer and his family. based on what happened on that street over that period of time, is just talent, guts, and glory.

>> and luck that nobody was killed? >> right. there was that major explosive. there were two other grenades that came in. they were lighting something in their hands. they're very rough devices. two other ones didn't explode, but our officers they were nearby said they could exexplode at any time. at the same time, the whole greater boston area is rushing to watertown. they're on the radio saying watertown is in deep trouble. >> this is shortly after midday? >> yes. everybody is coming and they were able to come to us, but the gunfire was over by the time people got there. >> walk us through what happened. the older brother, he's wounded, right? >> right. >> thrown out of the car. there are reports that the

younger brother drove over his brother. >> yes. that's exactly what happened. at some point, the first brother who died at the scene, he all of a sudden comes out from under cover and just starting walking down the street shooting at our police officers. now my closest police officer is five or ten feet away. he runs out of ammunition, the bad guy. my officer tackles him in the street and tries to get him hand cuffed. >> the older brother? >> the older brother. one of them yells out, look out. and here comes the black suv that was hijacked directly after. he drove over his brother.

>> in effect, killing his brother? >> that's what we think. >> so you pursue? >> right. at the same time, one of the transit officer that is came behind our officers, he's been shot. he has a serious wound and serious bleeding going on. an emt went and rendsered him aid. they just deserve all kinds of credit for saving that gentleman's life. our prayers are still with him and the family because he's still in a tough way. we hope he can make a recovery. >> how did the younger one escape? >> he drove off. there was still gunfire. he got down two or three streets. we were in pursuit of him, along with other officers. and he dumps the car and runs into the darkness of the streets. >> that's it? >> then we lost contact with him. >> he's in watertown some place. he's running.

you have no idea if he's armed, but he's gone? >> right. we're assuming he has explosives and weapons. >> this is about 1:00 in the morning? >> that's right. >> that's when you begin this massive manhunt? >> that's right. >> the older brother is pronounced dead at the hospital? >> right. >> what else did you find at the scene? >> just handguns there. there was a long arm rifle, three bombs that exploded. there's the two that weren't detonated. the car that he bailed out of, i know there was one other explosive there they didn't use. six bombs they had, if you will. before we wrap up, i want to say the support we have gotten from the watertown police department and the boston police department and law enforcement across the world -- we have so many people reaching out to us.

it was just so moving to see the support we had. i just want to thank the people of watertown and the greater boston area and the people across the country. >> thanks for your work. we appreciate you. we really appreciate what you've done. >> thank you very much. >> thanks for bringing this to an end. once again, many thanks to chief devoe for taking the time to speak to us. i'm sure the support continues to pour in with officer. thanks very much for joining us. i'll be back at 5:00 p.m. anderson cooper will continue right after this. i'm a conservative investor.

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